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CEMS Services

Continuous Emissions Monitoring System (CEMS) Services

ESC Spectrum provides a full suite of CEMS services, from professional maintenance and training to repair and calibration to stack testing.

CEMS Protect Partner Program

ESC Spectrum’s CEMS Partner Program provides the services you need to protect your equipment and stay in compliance. We work with you to ensure all required quarterly activities are completed correctly and on time, while providing your technicians with on-the-job training, troubleshooting expertise and support. Customize each visit to the indivudual needs of your facility. Learn more about this service on the CEMS Partner Program information sheet.

Professional Maintenance and Training

Our CEMS Services department provides customizable maintenance contracts to meet your specific needs, ranging from periodic visits and on-site assistance or training to employees to full turnkey solutions including all labor, parts and response and uptime guarantees. 

Repair and Calibration

ESC Spectrum operates a full depot-level lab with the ability to repair and refurbish most major CEMS analyzer and monitor brands with same day options available for some services. We perform Elemental Mercury Calibrator certifications in accordance with the Interim EPA Traceability Protocol as well as Neutral Density Filter certifications as required by 40CFR60.

ESC Spectrum's Calibrator Certification service compares and tests the Thermo Hg 81i Mercury Calibrator against a NIST traceable vendor prime. Our lab is the only facility besides the manufacturer certified to repair and calibrate these devices. Read more about our straighforward, four-step Calibrator Certification process that makes it easy to check and certify your system. 

Stack Testing

ESC Spectrum has performed air emissions Stack Testing since 1991 - we understand that making informed decisions when it comes to emissions is crucial to our customers’ operations. Our team of experts are well-versed in EPA test methodologies and CEMS operations. Because they are familiar with the Data Acquisition Systems (DAS) they are testing, our stack testing technicians can troubleshoot and easily solve problems.

We write and support our own commercially available Stack Testing Software, RATAView, to ensure efficient testing and accurate results. We are experienced in EPA test methods for industrial categories under various temperature, pressure, pollutant concentration and gas flow conditions. These include:
These include:

  • SO2
  • NOx
  • CO2
  • O2
  • VOC
  • NH3
  • H2O
  • CO
  • Mercury
  • Flow
  • Particulate (PS-11, CPMS, M5, M202)
  • Visual Emissions

We provide XML files for all part 75 testing for ECMPS. Learn more about ESC Spectrum's Stack Testing expertise here.

Have a challenge you need assistance with?  Contact our Sales team.